EP2540487B1 - Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon - Google Patents
Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon Download PDFInfo
- Publication number
- EP2540487B1 EP2540487B1 EP11005298.2A EP11005298A EP2540487B1 EP 2540487 B1 EP2540487 B1 EP 2540487B1 EP 11005298 A EP11005298 A EP 11005298A EP 2540487 B1 EP2540487 B1 EP 2540487B1
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- EP
- European Patent Office
- Prior art keywords
- embossing
- pressing plate
- continuous belt
- adhesive
- carrier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/28—Presses specially adapted for particular purposes for forming shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
Definitions
- the invention relates to a press plate or endless belt, consisting of a carrier body and an embossing body for embossing materials, in particular wood materials or plastic materials by means of a surface structuring of the embossing body, wherein the carrier body is connected to the embossing body via an adhesive, and a method for producing such a press plate or endless belts and production processes for embossed materials using them.
- Press plates or endless belts are required to press wood-based panels with decorative and / or overlay papers. This involves a full-surface coating of the wood-based panels with Aminoplastharzfilmen, also called Duroplastharze. Processing takes place, for example, in one-day short-cycle presses or multi-daylight presses.
- the finished press plates or endless belts are used in the presses to impart a desired surface structure to the wood materials to be produced. Preferably, in this case a congruent embossing is preferred.
- a decor paper used is used with a conformable press plate or an endless belt, so that the structure of the decorative paper can be embossed into relief in the surface.
- the structures used in this case may be of natural origin, for example the imitation of a wood pore structure or rock surface, it is also possible to produce any desired structures according to customer requirements.
- the decorative and overlay papers used are preferably made of thermoset resins, which pass through pressure and temperature in the press line in a liquid form and enter into a solid connection with the wood material with increasing degree of crosslinking, with simultaneous increase in resin viscosity in the final state.
- thermoset resins used are the melamine, phenolic or melamine / urea resins, which are known as have been found particularly suitable.
- the melamine resin becomes liquid under pressure and temperature, and a further polycondensation takes place. Press time and temperature determine the degree of crosslinking of the melamine resins and their surface quality.
- the melamine resin After the pressing time, the melamine resin has the desired degree of crosslinking and has turned into a solid phase, wherein a lifelike, the surface of the embossing tool reproducing surface design is achieved by the effected simultaneously structured embossing of Melaminharzaber Construction.
- embossing tools in the form of press plates or endless belts made of steel sheets, which receive the required surface structure by appropriate processing.
- various methods are known, for example, by orders of a screen printing process to provide an etch resist to make a subsequent etching of the press plate.
- the sheets used in this case have a very large format, so that it depends on a very precise processing and in particular a cover-compliant further processing, as far as several steps are necessary.
- Several work steps always occur when particularly deep structures have to be etched and for this purpose several etching operations with a previously applied etching resist are required.
- these further process steps can be subjected to achieve special effects, for example, to influence the gloss level.
- the degree of gloss can be made from matt, semi-glossy to glossy Pressing the wood-based panels have a desired surface texture with gloss effect that comes very close to that of grown natural wood.
- wood pore structures are produced by these methods, but equally imaginative surface designs can be made or a leather imitation, tiles or natural stone surfaces can be reproduced. Any conceivable structure can be produced by this method.
- the overlay papers can be doped with abrasion-resistant particles, such as corundum, so that a high abrasion resistance is present for the end user.
- abrasion resistance leads to negative effects on the used press plates or endless belts. After each pressing operation and opening of the presses, a relative movement takes place between the processed wood material with the pressed surfaces and the press plate or endless belt, so that a gradual deterioration of the surface structure occurs. In such a case, it is necessary to completely rework the press plate or to replace it with a new press plate.
- the press plates In the coating, for example of HDF (high-density fiberboard) plates, the press plates must be refurbished after a relatively short period of use. The reason is the high proportion of corundum which is used in the melamine resin films for abrasion resistance, whereby the chrome-plated surfaces are abraded relatively quickly.
- the production of a press plate is very complex and costly, with a scrapping is provided at the end of the term. Among other things, this is due to the fact that the blanks of the press plates or endless belts are first provided with a direction-free intermediate sanding and additionally polished before the surface structuring, before a new structuring can take place so that gradually after several reworking the thickness of the press plates or endless belts no longer required level reached.
- a method for producing a press plate in which a press plate blank is brought into a hollow cylindrical shape in order to subsequently fix it to a carrier.
- the carrier may be, for example, a cylinder, so that the further processing steps can be carried out by rotation.
- the press plate blank is re-formed into a flat press plate to then make an attachment to a carrier plate with the aid of an adhesive.
- the use of a pure adhesive is considered to be critical at the temperatures to be provided of up to 230 degrees, so that the adhesion of the press plate blank on the support plate can not be guaranteed permanently.
- a mold for producing a microstructure is known.
- This mold is primarily used for clamping on a roller and consists of a carrier film on which an embossing lacquer is arranged.
- the surface of the embossing lacquer in this case has elevations and depressions in the desired microstructure and is used for embossing of the materials provided.
- the carrier film In order for the carrier film can be held on the roller, is preferably a Clamping cylinder used, but also not excluded that the attachment of the carrier film can be done by an adhesive or a magnetic attachment.
- WO 2006/136949 A2 For example, there is known a method of manufacturing floor panels using a press tool consisting of a frame and individual removable press plates.
- the press plates can be held by screws, an adhesive or possibly magnets.
- the invention has for its object to provide a novel press plate or endless belt for a single or multi-daylight press, which allows replacement of a stamping body with sufficient heat transfer.
- the embossing body can be produced inexpensively regardless of the carrier body and be connected by the adhesive with the carrier body insofar that a proper use for single or multi-day presses can be done.
- After wear of the surface structuring it is possible subsequently to remove the embossing body from the carrier body and replace it with a new embossing body.
- the material required in this case is significantly reduced because the carrier body can be used over and over again and only an extremely thin coating in the form of an embossing body must be replaced.
- the carrier body consisting of, for example, stainless steel, for example AISI No. 630, AISI 410 or AISI 304 or brass according to the prior art.
- the embossing body is produced independently of the carrier body, that is provided with a surface structure.
- the carrier body and the embossing body with the aid of a magnetic adhesive are intimately and reversibly connected so that a sandwich structure is created.
- This sandwich structure has the particular advantage that in later work-up the expensive carrier body is retained and only the upper embossing body has to be renewed. By this measure, production and raw material costs are saved to a considerable extent.
- the embossing body which is usually much thinner and cheaper than the carrier body, already prefabricated and placed in storage for each customer. This saves time and significantly shortens delivery times.
- the adhesive consists of magnetic materials.
- Such adhesives are always suitable when the carrier body and the embossing body are both made of steel and thus have magnetic properties.
- a high temperature resistant magnetic film is used, which ensures the adhesive bond as the intimate connection between the two bodies and consists of a crosslinked silicone elastomer, with an addition of high temperature resistant magnetic materials, such as samarium / cobalt, aluminum / nickel / cobalt, neodyn / Iron / boron, barium or strontium ferrites or soft ferrites, such as manganese / zinc.
- All of the aforementioned permanent magnet materials lose very little of their holding power, about 15 to 20% at the existing operating temperatures of about 220 °.
- the proportion of additional magnetic materials depends on the respective desired adhesive force of the materials, less the loss of adhesion at the respective operating temperature and the total weight of the embossing body.
- these boundary conditions can be taken into account without problems, so that even with the help of a magnetic film, a permanent, but reversible connection between the carrier body and the embossing body can be produced.
- the magnetic film offers the possibility of separating both bodies from each other without residue, so that a rapid exchange of the embossing body can take place in the event of wear.
- modified acrylate adhesives for example PMMA adhesive poly (methacrylic methacrylate), PMt poly (methacrylimide), MBS poly (methacryl methacrylate) styrene butadiene, UP unsaturated polyester resins are suitable - DAP diallyl phtatlate, aromatic polyimides, silicone resins, epoxy resins, ACM acrylate rubber or FKM fluorinated rubber adhesive.
- the adhesive is doped with a metal powder, for example, copper, brass, aluminum or iron.
- the adhesives used in this case can be used up to temperatures of 250 ° Celsius, so that premature detachment of the embossing, for example, at the temperatures occurring for the production of the material plates of about 220 ° does not occur.
- the adhesives can be tempered above temperatures of 250 °, so that the embossing body can be detached from the carrier body without further ado.
- the embossing body for example, etching technology or laser engraving, used, these preferably have only a small thickness and thus can be processed much less complicated.
- One possibility for this is to clamp a stamping body in the form of a metal foil or thin sheets on a steel cylinder for surface structuring, the diameter of the steel cylinder is adaptable to the maximum width of the press plates, so after completion of the embossing body and after removal of the Stahlzylindem this with the Carrier body can be connected.
- metal foils or thin sheets or other materials such as steel or brass are used, they can be clamped onto the steel cylinder and then engraved accordingly, followed by the above steps until the completion of the surface structuring.
- the metal foils or thin sheets produced in this way are then cut to the size of the carrier body and connected to it, so that the press plate or endless belt is available for further use.
- a ballard skin of about 100 microns on a copper base layer wherein between the base layer and the ballard skin can be arranged a release layer, so that a later lifting of the ballard skin is possible.
- gravure refers to a peelable layer of copper on a gravure cylinder.
- the gravure cylinder made of steel covers a 2 mm thick base copper layer on which a second copper layer, the so-called ballard skin, is galvanized. Between the 100 ⁇ m thin ballard skin and the main body lies the separation layer, so that the ballard skin can be easily removed after engraving and replaced with a new one.
- a metal is preferably used, for example stainless steel, AISI No. 630, AISI 410 or AISI 304 or alternatively a brass sheet.
- the embossing body may consist of copper, brass or stainless steel, wherein the thickness is freely selectable depending on the required structure depth, preferably 0.3 to 3.0 mm, particularly preferably 0.3 to 1.5 mm.
- the main advantages of the newly designed press plates or endless belts consists in a later separation of carrier body and embossing body, the embossing body is exposed to significantly higher wear than the carrier body, the carrier body can therefore be used several times and is always new with a stamping body connected, preferably with magnetic materials doped pressure-sensitive adhesives are used, which allow an intimate connection. Alternatively, a connection can be made with the aid of magnetic materials, in particular a magnetic adhesive film, in order to achieve the desired advantages.
- the method according to claim 12 is characterized by a particular economy and also allows multiple reuse of the carrier body, which is exposed to almost no wear.
- the embossing bodies used in the form of a thin metal foil or a thin sheet can be reversibly removed from the carrier body, so that a workup of the carrier body is required only to a small extent.
- considerable processing time is saved and also a considerable savings potential is achieved by the use of thin sheets or metal foils with a surface structuring, in particular due to the fact that the materials to be processed, wood materials with overlay and decor papers cause wear of the embossing body.
- the particular advantage results from the reversible connection of carrier and embossing body.
- a further advantage of the press plates or endless belts according to the invention is that less high-quality metals are used for the carrier body and thus the production costs can be significantly reduced. So far, it has been necessary to use high-grade stainless steels, which make it possible to carry out the necessary surface structuring. However, there is no need to be taken into account, since the surface structuring takes place only on the surface of the embossing body.
- FIG. 1 shows a perspective view of an inventive press plate 1, which is flat in the embodiment shown. In the case of an endless belt, however, this embossing tool can also be curved.
- the press plate 1 shows a grain 2, which is modeled, for example, the shape of a wood pore structure. However, it is conceivable that other grain or other surface textures in this Way is produced by the inventive method and the necessary etching or laser process.
- FIG. 2 shows in an enlarged side view part of the front edge region of the press plate 1 and the surface structuring thereon.
- the press plate 1 consists of a carrier body 10, an embossing body 11 and an adhesive 12.
- the adhesive 12 allows, as far as it consists of a doped with metal powder high temperature resistant adhesive or a magnetic film, a detachment of the embossing body 11 of the carrier body 10.
- the carrier body 10th thus, it can be reused while, on the other hand, a worn embossing body 11 is replaced.
- the existing on the embossing body 11 surface structuring 13 is prepared for example by means of known etching technologies or a laser engraving, wherein a layer thickness of the embossing body of 0.3 to 3 mm, preferably 0.3 to 1.5 mm is used.
- a layer thickness of the embossing body of 0.3 to 3 mm, preferably 0.3 to 1.5 mm is used.
- a particular advantage of this invention press plates or endless belts is that for the carrier body 10 less high-quality metals must be used and thus the production costs can be significantly reduced. So far, it has been necessary to use high-grade stainless steels, which make it possible to carry out the necessary surface structuring. However, there is no need to be taken into account, since the surface structuring takes place only on the surface of the embossing body.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Die Erfindung betrifft ein Pressblech oder Endlosband, bestehend aus einem Trägerkörper und einem Prägekörper zur Prägung von Werkstoffen, insbesondere Holzwerkstoffen oder Kunststoffmaterialien mittels einer Oberflächenstrukturierung des Prägekörpers, wobei der Trägerkörper mit dem Prägekörper über ein Haftmittel verbunden ist, sowie ein Verfahren zur Herstellung eines solchen Pressblechs oder Endlosbands und Herstellungsverfahren für geprägte Werkstoffe unter deren Verwendung.The invention relates to a press plate or endless belt, consisting of a carrier body and an embossing body for embossing materials, in particular wood materials or plastic materials by means of a surface structuring of the embossing body, wherein the carrier body is connected to the embossing body via an adhesive, and a method for producing such a press plate or endless belts and production processes for embossed materials using them.
Pressbleche oder Endlosbänder werden benötigt, um Holzwerkstoffplatten mit Dekor- und/oder Overlay-Papiere zu verpressen. Hierbei erfolgt eine vollflächige Beschichtung der Holzwerkstoffplatten mit Aminoplastharzfilmen, auch Duroplastharze genannt. Die Verarbeitung erfolgt beispielsweise in Einetagen-Kurztaktpressen oder Mehretagenpressen. Die fertiggestellten Pressbleche oder Endlosbänder werden in den Pressen eingesetzt, um den herzustellenden Holzwerkstoffen eine gewünschte Oberflächenstruktur zu vermitteln. Vorzugsweise wird hierbei eine deckungskonforme Prägung bevorzugt. Dies bedeutet, dass ein verwendetes Dekorpapier mit einem deckungskonformen Pressblech oder einem Endlosband eingesetzt wird, sodass die Struktur des Dekorpapieres reliefartig in die Oberfläche eingeprägt werden kann. Die hierbei verwendeten Strukturen können natürlichen Ursprungs sein, beispielsweise die Nachahmung einer Holzporenstruktur oder Gesteinsoberfläche, ebenso besteht die Möglichkeit beliebige gewünschte Strukturen entsprechend den Kundenwünschen herzustellen.Press plates or endless belts are required to press wood-based panels with decorative and / or overlay papers. This involves a full-surface coating of the wood-based panels with Aminoplastharzfilmen, also called Duroplastharze. Processing takes place, for example, in one-day short-cycle presses or multi-daylight presses. The finished press plates or endless belts are used in the presses to impart a desired surface structure to the wood materials to be produced. Preferably, in this case a congruent embossing is preferred. This means that a decor paper used is used with a conformable press plate or an endless belt, so that the structure of the decorative paper can be embossed into relief in the surface. The structures used in this case may be of natural origin, for example the imitation of a wood pore structure or rock surface, it is also possible to produce any desired structures according to customer requirements.
Die eingesetzten Dekor- und Overlaypapiere bestehen vorzugsweise aus Duroplastharzen, welche durch Druck und Temperatur in der Pressenanlage in eine flüssige Form übergehen und mit steigendem Vernetzungsgrad, bei gleichzeitigem Anstieg der Harzviskosität im Endzustand eine feste Verbindung mit dem Holzwerkstoff eingehen. Zu den verwendeten Duroplastharzen zählen die Melamin-, Phenol- oder Melamin-/Harnstoffharze, welche sich als besonders geeignet herausgestellt haben. Während des Pressvorgangs wird unter Druck und Temperatur das Melaminharz flüssig und es findet eine weitere Polykondensation statt. Presszeit und Temperatur bestimmen den Vernetzungsgrad der Melaminharze und deren Oberflächenqualität. Nach Ablauf der Presszeit besitzt das Melaminharz den gewünschten Vernetzungsgrad und ist in eine feste Phase übergegangen, wobei durch die erfolgte gleichzeitig strukturierte Prägung der Melaminharzaberfläche eine naturgetreue, die Oberfläche des Prägewerkzeuges wiedergebende Oberflächengestaltung erzielt wird.The decorative and overlay papers used are preferably made of thermoset resins, which pass through pressure and temperature in the press line in a liquid form and enter into a solid connection with the wood material with increasing degree of crosslinking, with simultaneous increase in resin viscosity in the final state. Among the thermoset resins used are the melamine, phenolic or melamine / urea resins, which are known as have been found particularly suitable. During the pressing process, the melamine resin becomes liquid under pressure and temperature, and a further polycondensation takes place. Press time and temperature determine the degree of crosslinking of the melamine resins and their surface quality. After the pressing time, the melamine resin has the desired degree of crosslinking and has turned into a solid phase, wherein a lifelike, the surface of the embossing tool reproducing surface design is achieved by the effected simultaneously structured embossing of Melaminharzaberfläche.
Nach dem Stand der Technik werden Prägewerkzeuge in Form von Pressblechen oder Endlosbändern aus Stahlblechen hergestellt, die durch entsprechende Bearbeitung die erforderliche Oberflächenstruktur erhalten. Hierzu sind verschiedene Verfahren bekannt, beispielsweise durch Aufträgen eines Siebdruckverfahrens ein Ätzresist zu schaffen, um eine anschließende Ätzung des Pressbleches vorzunehmen. Die hierbei verwendeten Bleche weisen ein sehr großes Format auf, sodass es auf eine sehr genaue Bearbeitung und insbesondere eine deckungskonforme Weiterbearbeitung ankommt, soweit mehrere Arbeitsschritte notwendig sind. Mehrere Arbeitsschritte fallen immer dann an, wenn besonders tiefe Strukturen geätzt werden müssen und hierzu mehrere Ätzvorgänge mit einem zuvor aufgetragenen Ätzresist erforderlich sind. Bei den Ätzverfahren werden sämtliche Bereiche, welche die erhabene Oberflächenstruktur später bilden soll, durch die Maske abgedeckt, sodass eine Oberflächenätzung nur in den Bereichen erfolgt, die unmittelbar von der Ätzflüssigkeit angegriffen werden können. Die herausgeätzten Bereiche bilden sodann die Profiltäler der gewünschten Struktur, wobei nach Beendigung des Ätzvorgangs die Oberfläche gereinigt und insbesondere die Maske entfernt wird.According to the state of the art embossing tools in the form of press plates or endless belts made of steel sheets, which receive the required surface structure by appropriate processing. For this purpose, various methods are known, for example, by orders of a screen printing process to provide an etch resist to make a subsequent etching of the press plate. The sheets used in this case have a very large format, so that it depends on a very precise processing and in particular a cover-compliant further processing, as far as several steps are necessary. Several work steps always occur when particularly deep structures have to be etched and for this purpose several etching operations with a previously applied etching resist are required. In the etching processes, all regions which are to form the raised surface structure later are covered by the mask, so that a surface etching takes place only in the regions which can be attacked directly by the etching liquid. The etched out areas then form the profile valleys of the desired structure, after completion of the etching process the surface is cleaned and in particular the mask is removed.
Alternativ besteht die Möglichkeit eine Fotoschicht aufzutragen, die anschließend einer Belichtung unterzogen wird, um nach der abschließenden Entwicklung der Fotoschicht die Pressbleche oder Endlosbänder nach dem Verbleib eines Teils der Fotoschicht als Ätzresist einem Ätzvorgang zu unterziehen. Die Reproduzierbarkeit der auf diesem Wege hergestellten Masken ist sehr schwierig und problematisch, weil die aufzutragenden Ätzresistschichten immer exakt in der gleichen Position angeordnet werden müssen, wenn besonders tiefe Strukturen geätzt werden sollen.Alternatively, it is possible to apply a photo layer, which is then subjected to an exposure to the final Development of the photo-layer to subject the press plates or endless belts after the whereabouts of a portion of the photo-layer as an etching resist an etching process. The reproducibility of the masks produced in this way is very difficult and problematic because the Ätzresistschichten to be applied must always be placed exactly in the same position when particularly deep structures are to be etched.
Des Weiteren ist aus dem Stand der Technik bekannt, anstelle eines Siebdruckverfährens eine Maske durch einen Wachsauftrag herzustellen oder alternativ einen UV-Lack zu verwenden, welcher mit Hilfe eines Digitaldruckverfahrens unmittelbar auf die zu bearbeitenden Pressbleche und Endlosbänder aufgedruckt wird. Nach erfolgter Ätzung, welche gegebenenfalls mehrfach wiederholt werden müssen, können hierbei besonders tiefe Strukturen erzielt werden, die durch die Anwendung des digitalisierten Druckverfahrens in einem hohen Maße deckungskonform sind.Furthermore, it is known from the prior art, instead of a Siebdruckverfährens to produce a mask by waxing or alternatively to use a UV varnish, which is printed by means of a digital printing process directly on the press plates and endless belts to be processed. After etching, which may need to be repeated several times, particularly deep structures can be achieved here, which are congruent by the application of the digitized printing process to a high degree.
Als weitere Alternative ist aus dem Stand der Technik bekannt, mit Hilfe eines Laserverfahrens unmittelbar die erforderliche Struktur auf die Oberfläche zu erzeugen, wobei die herzustellende Tiefenstrukturen direkt mit Hilfe eines Lasers hergestellt werden. Auch bei diesem Verfahren wird mit Hilfe einer digitalen Drucktechnik die exakte Steuerung des Lasers vorgenommen, sodass nach Fertigstellung der Pressbleche oder Endlosbänder diese eine 100%tige Übereinstimmung mit den Dekorpapieren aufweisen. Erst durch die in letzter Zeit entwickelten Verfahren zur Oberflächenstrukturierung wird das erforderliche Maß erreicht, um eine höchste Übereinstimmung der erforderlichen Pressblechstrukturen mit den Dekorpapieren herzustellen.As a further alternative, it is known from the prior art to produce the required structure directly on the surface with the aid of a laser method, wherein the depth structures to be produced are produced directly with the aid of a laser. Also in this method, the exact control of the laser is made with the help of a digital printing technology, so that after completion of the press plates or endless belts these have a 100% match with the decor papers. It is only through the recently developed surface structuring process that the required level is achieved in order to achieve the highest level of conformity of the required press sheet structures with the decor papers.
Nach Fertigstellung der Pressbleche oder Endlosbänder können diese weiteren Prozessschritten unterzogen werden, um besondere Effekte zu erzielen, beispielsweise um den Glanzgrad zu beeinflussen. Der Glanzgrad kann von matt, seidenmatt bis glänzend ausgeführt werden, wodurch nach erfolgtem Pressvorgang die Holzwerkstoffplatten eine gewünschte Oberflächenstruktur mit Glanzeffekt aufweisen, die dem von gewachsenen natürlichen Holz sehr nahe kommt. Vorzugsweise werden nach diesen Verfahren Holzporenstrukturen hergestellt, es können aber ebenso fantasievolle Oberflächengestaltungen vorgenommen werden oder eine Lederimitation, Fliesen oder Natursteinoberflächen nachgebildet werden. Jede denkbare Struktur kann nach diesem Verfahren hergestellt werden.After completion of the press plates or endless belts, these further process steps can be subjected to achieve special effects, for example, to influence the gloss level. The degree of gloss can be made from matt, semi-glossy to glossy Pressing the wood-based panels have a desired surface texture with gloss effect that comes very close to that of grown natural wood. Preferably, wood pore structures are produced by these methods, but equally imaginative surface designs can be made or a leather imitation, tiles or natural stone surfaces can be reproduced. Any conceivable structure can be produced by this method.
Je nach dem Verwendungszweck der hergestellten Holzwerkstoffplatten, beispielweise im Wandbereich, aber ebenso im Fußbodenbereich, können die Overlay-Papiere mit abriebfesten Partikeln, beispielsweise Korund, dotiert sein, sodass für den Endverbraucher eine hohe Abriebfestigkeit vorliegt. Diese Abriebfestigkeit führt aber zu negativen Auswirkungen auf die verwendeten Pressbleche oder Endlosbänder. Nach jedem Pressvorgang und Öffnen der Pressen erfolgt eine Relativbewegung zwischen dem bearbeiteten Holzwerkstoff mit den verpressten Oberflächen und dem Pressblech oder Endlosband, sodass sich allmählich ein Verschleiß der Oberflächenstruktur einstellt. In einem solchen Fall ist es erforderlich das Pressblech vollständig zu überarbeiten oder durch ein neues Pressblech zu ersetzen. Bei der Beschichtung, zum Beispiel von HDF-Platten (High-density- fiberboard) müssen die Pressbleche bereits nach relativ kurzer Einsatzdauer wieder aufgearbeitet werden. Grund ist der hohe Anteil an Korund der in den Melaminharzfilmen zur Abriebsfestigkeit verwendet wird, wodurch die verchromten Oberflächen relativ schnell abgerieben werden. Die Herstellung eines Pressbleches ist sehr aufwändig und kostenintensiv, wobei am Ende der Laufzeit eine Verschrottung vorgesehen ist. Dies liegt unter anderem daran, dass die Rohlinge der Pressbleche oder Endlosbänder zunächst mit einem richtungsfreien Zwischenschliff versehen werden und vor der Oberflächenstrukturierung zusätzlich poliert werden müssen, bevor eine neue Strukturierung erfolgen kann, sodass allmählich nach mehreren Nachbearbeitungen die Dicke der Pressbleche oder Endlosbänder nicht mehr das erforderliche Maß erreicht. Erst im Anschluss erfolgt die aufwändige Strukturherstellung, zum Beispiel nach den klassischen Ätzverfahren, Auftrag der Ätzreserve, Ätzen mit zum Beispiel Eisen-III-chlorid, Ganzgradherstellung durch zum Beispiel Sandstrahlen und anschließender Oberflächenversiegelung, zum Beispiel Verchromung, oder alternativ durch die Herstellung der Struktur mit Hilfe einer Lasergravur. Ebenso müssten bei mechanischen Beschädigungen meistens die Pressblechoberflächen vollständig abgeschliffen und neu bearbeitet werden. Dies führt dazu, dass die relativ teueren Basispressbleche nur bedingt einsatzfähig bleiben und nach circa vier bis sechs Aufarbeitungen verschrottet werden müssen, da sie aufgrund ihrer Dicke zu instabil werden und in der Pressenanlage nicht gleichmäßig fixiert werden können.Depending on the intended use of the wood-based panels produced, for example in the wall area, but also in the floor area, the overlay papers can be doped with abrasion-resistant particles, such as corundum, so that a high abrasion resistance is present for the end user. However, this abrasion resistance leads to negative effects on the used press plates or endless belts. After each pressing operation and opening of the presses, a relative movement takes place between the processed wood material with the pressed surfaces and the press plate or endless belt, so that a gradual deterioration of the surface structure occurs. In such a case, it is necessary to completely rework the press plate or to replace it with a new press plate. In the coating, for example of HDF (high-density fiberboard) plates, the press plates must be refurbished after a relatively short period of use. The reason is the high proportion of corundum which is used in the melamine resin films for abrasion resistance, whereby the chrome-plated surfaces are abraded relatively quickly. The production of a press plate is very complex and costly, with a scrapping is provided at the end of the term. Among other things, this is due to the fact that the blanks of the press plates or endless belts are first provided with a direction-free intermediate sanding and additionally polished before the surface structuring, before a new structuring can take place so that gradually after several reworking the thickness of the press plates or endless belts no longer required level reached. Only then follows the complex structure production, for example by the classical etching method, application of the etching reserve, etching with, for example, ferric chloride, full-grade production by, for example, sandblasting and subsequent surface sealing, for example chromium plating, or alternatively by the production of the structure by means of a laser engraving. Likewise, mechanical damage usually requires the press plate surfaces to be completely abraded and reworked. The result of this is that the relatively expensive base press sheets only remain conditionally usable and must be scrapped after approximately four to six work-ups, since they become too unstable due to their thickness and can not be uniformly fixed in the press installation.
Aus der
Aus der
Aus der
Die aus dem Stand der Technik bekannten Verfahren lösen aber nicht das Problem eines Wärmeübertrages auf die zu verarbeitenden Werkstoffplatten bzw. gewährleisten nicht in ausreichendem Maße, dass die Haftwirkung auch bei höheren Temperaturen von bis zu 250 Grad gewährleistet ist.However, the methods known from the prior art do not solve the problem of heat transfer to the material plates to be processed or do not ensure sufficient extent that the adhesive effect is ensured even at higher temperatures of up to 250 degrees.
Der Erfindung liegt die Aufgabe zugrunde, ein neuartiges Pressblech oder Endlosband für eine Ein- oder Mehretagenpresse vorzuschlagen, welches einen Austausch eines Prägekörpers mit ausreichendem Wärmeübertrag ermöglicht.The invention has for its object to provide a novel press plate or endless belt for a single or multi-daylight press, which allows replacement of a stamping body with sufficient heat transfer.
Diese Aufgabe wird durch ein Pressblech oder Endlosband gemäss Anspruch 1, ein Verfahren zur Herstellung eines Pressbleches oder Endlosbandes gemäss Anspruch 12 und ein Verfahren zur Herstellung geprägter Werkstoffegemäss Anspruch 15 gelöst.This object is achieved by a press plate or endless belt according to
Gegenüber den bisherigen Verfahren mit einem Basismaterial, welches das Pressblech oder Endlosband bildet und welches mit einer Oberflächenstrukturierung versehen wird, wird erfindungsgemäß vorgeschlagen, einen Trägerkörper zu verwenden, der mit einem Prägekörper über ein Haftmittel verbunden ist, wobei nur der Prägekörper eine Oberflächenstrukturierung aufweist. Somit kann der Prägekörper unabhängig vom Trägerkörper kostengünstig hergestellt werden und durch das Hafmittel mit dem Trägerkörper insoweit verbunden werden, dass eine bestimmungsgemäße Verwendung für die Ein- oder Mehretagenpressen erfolgen kann. Nach Abnutzung der Oberflächenstrukturierung besteht im Anschluss die Möglichkeit den Prägekörper von dem Trägerkörper wieder zu entfernen und durch einen neuen Prägekörper zu ersetzen. Der hierbei erforderliche Materialeinsatz ist deutlich reduziert, weil der Trägerkörper immer wieder verwendet.werden kann und eine nur äußerst dünne Beschichtung in Form eines Prägekörpers ausgetauscht werden muss.Compared to the previous method with a base material which forms the press plate or endless belt and which with a surface structuring is provided, it is proposed according to the invention to use a carrier body which is connected to an embossing body via an adhesive, wherein only the embossing body has a surface structuring. Thus, the embossing body can be produced inexpensively regardless of the carrier body and be connected by the adhesive with the carrier body insofar that a proper use for single or multi-day presses can be done. After wear of the surface structuring, it is possible subsequently to remove the embossing body from the carrier body and replace it with a new embossing body. The material required in this case is significantly reduced because the carrier body can be used over and over again and only an extremely thin coating in the form of an embossing body must be replaced.
Hierzu wird zunächst der Trägerkörper, bestehend aus beispielsweise Edelstahl, zum Beispiel AISI Nr. 630, AISI 410 oder AISI 304 oder Messing nach dem Stand der Technik vorbereitet. Anstelle der üblichen Oberflächenstrukturierung des Pressbleches oder Endlosbandes mittels einer Ätztechnologie oder einer digitalen Lasergravur wird unabhängig von dem Trägerkörper der Prägekörper hergestellt, das heißt mit einer Oberflächenstruktur versehen, Im Anschluss daran werden der Trägerkörper und der Prägekörper mit Hilfe eines magnetischen Haftmittels miteinander innig und reversibel verbunden, sodass eine Sandwichstruktur entsteht. Diese Sandwichstruktur hat den besonderen Vorteil, dass bei späteren Aufarbeitungen der teuere Trägerkörper erhalten bleibt und nur der obere Prägekörper erneuert werden muss. Durch diese Maßnahme werden Produktions- und Rohstoffkosten in erheblichem Maße eingespart. Weiterhin kann der Prägekörper, der in der Regel wesentlich dünner und preiswerter als der Trägerkörper ist, bereits vorgefertigt und für den jeweiligen Kunden auf Lager gelegt werden. Hierdurch wird Zeit eingespart und die Lieferzeiten in erheblichem Maße verkürzt.For this purpose, the carrier body, consisting of, for example, stainless steel, for example AISI No. 630, AISI 410 or AISI 304 or brass according to the prior art, is first prepared. Instead of the usual surface structuring of the press plate or endless belt by means of an etching technology or a digital laser engraving, the embossing body is produced independently of the carrier body, that is provided with a surface structure, Subsequently, the carrier body and the embossing body with the aid of a magnetic adhesive are intimately and reversibly connected so that a sandwich structure is created. This sandwich structure has the particular advantage that in later work-up the expensive carrier body is retained and only the upper embossing body has to be renewed. By this measure, production and raw material costs are saved to a considerable extent. Furthermore, the embossing body, which is usually much thinner and cheaper than the carrier body, already prefabricated and placed in storage for each customer. This saves time and significantly shortens delivery times.
In Ausgestaltung der Erfindung ist vorgesehen, dass das Haftmittel aus Magnetwerkstoffen besteht. Derartige Haftmittel eignen sich immer dann, wenn der Trägerkörper und der Prägekörper beide aus Stahl gefertigt sind und somit magnetische Eigenschaften aufweisen. Zur Verbindung von Trägerkörper und Prägekörper kommt eine hochtemperaturbeständige Magnetfolie zum Einsatz, die als Haftmittel die innige Verbindung zwischen den beiden Körpern gewährleistet und aus einem vernetzten Silikonelastomer besteht, mit einem Zusatz von hochtemperaturbeständigen Magnetwerkstoffen, wie Samarium/Kobald, Aluminium/Nickel/Kobald, Neodyn/Eisen/Bor, Barium-oder Strontiumferriten oder Weichferriten, wie Mangan/Zink. Sämtliche der vorgenannten Dauermagnetwerkstoffe verlieren nur sehr wenig von ihrer Haltekraft, cirka 15 bis 20% bei den bestehenden Betriebstemperaturen von cirka 220°. Der Anteil der Zusatzmagnetwerkstoffe richtet sich nach der jeweils gewünschten Haftkraft der Werkstoffe, abzüglich des Haftkraftverlust bei der jeweiligen Betriebstemperatur und das Gesamtgewicht des Prägekörpers. Diese Randbedingungen können jedoch unproblematisch berücksichtigt werden, sodass bereits mit Hilfe einer Magnetfolie eine dauerhafte, aber reversible Verbindung zwischen Trägerkörper und Prägekörper herstellbar ist. Gleichzeitig bietet die Magnetfolie die Möglichkeit beide Körper rückstandslos voneinander zu trennen, sodass ein schneller Austausch des Prägekörpers im Falle einer Abnutzung erfolgen kann.In an embodiment of the invention it is provided that the adhesive consists of magnetic materials. Such adhesives are always suitable when the carrier body and the embossing body are both made of steel and thus have magnetic properties. To connect the carrier body and embossing body is a high temperature resistant magnetic film is used, which ensures the adhesive bond as the intimate connection between the two bodies and consists of a crosslinked silicone elastomer, with an addition of high temperature resistant magnetic materials, such as samarium / cobalt, aluminum / nickel / cobalt, neodyn / Iron / boron, barium or strontium ferrites or soft ferrites, such as manganese / zinc. All of the aforementioned permanent magnet materials lose very little of their holding power, about 15 to 20% at the existing operating temperatures of about 220 °. The proportion of additional magnetic materials depends on the respective desired adhesive force of the materials, less the loss of adhesion at the respective operating temperature and the total weight of the embossing body. However, these boundary conditions can be taken into account without problems, so that even with the help of a magnetic film, a permanent, but reversible connection between the carrier body and the embossing body can be produced. At the same time, the magnetic film offers the possibility of separating both bodies from each other without residue, so that a rapid exchange of the embossing body can take place in the event of wear.
Soweit mit Metallpulver dotierte hochtemperaturbeständige Kleber zum Einsatz kommen sollen eignen sich modifizierte Acrylat-Kleber, zum Beispiel PMMA-Kleber Poly(methacryl-methacrylat), PMt Poly(methacrylimid), MBS Poly(methacryl-methacrylat)-Styrol-Butadien, UP ungesättigte Polyesterharze - DAP Diallylphtatlat, Aromatische Polymide, Silikonharze, Epoxidharze, ACM Acrylatkautschuk oder FKM Fluorkautschuk-Kleber.If high-temperature-resistant adhesives doped with metal powder are to be used, modified acrylate adhesives, for example PMMA adhesive poly (methacrylic methacrylate), PMt poly (methacrylimide), MBS poly (methacryl methacrylate) styrene butadiene, UP unsaturated polyester resins are suitable - DAP diallyl phtatlate, aromatic polyimides, silicone resins, epoxy resins, ACM acrylate rubber or FKM fluorinated rubber adhesive.
Um den Wärmedurchgangswert der erfindungsgemäßen Pressbleche oder Endlosbänder, eine Erwärmung der Werkstoffplatten ist in den Ein- oder Mehretagenpressen zwingend erforderlich, zu erhöhen, wird der Kleber mit einem Metallpulver dotiert, beispielsweise, Kuper, Messing, Aluminium oder Eisen. Die hierbei verwendeten Haftmittel sind bis zu Temperaturen von 250°Celsius einsetzbar, sodass eine vorzeitige Ablösung der Prägekörper beispielsweise bei den auftretenden Temperaturen zur Herstellung der Werkstoffplatten von cirka 220° nicht erfolgt. Gleichzeitig können die Haftmittel jedoch oberhalb von Temperaturen von 250° getempert werden, sodass der Prägekörper von dem Trägerkörper ohne Weiteres abgelöst werden kann.To the heat transfer value of the press plates or endless belts according to the invention, a heating of the material plates is in the on or To increase multi-floor presses, the adhesive is doped with a metal powder, for example, copper, brass, aluminum or iron. The adhesives used in this case can be used up to temperatures of 250 ° Celsius, so that premature detachment of the embossing, for example, at the temperatures occurring for the production of the material plates of about 220 ° does not occur. At the same time, however, the adhesives can be tempered above temperatures of 250 °, so that the embossing body can be detached from the carrier body without further ado.
Zur Herstellung der Prägekörper werden die aus dem Stand der Technik bekannten Verfahren, beispielsweise Ätztechnologie oder Lasergravur, eingesetzt, wobei diese vorzugsweise eine nur geringe Dicke aufweisen und somit wesentlich unkomplizierter bearbeitet werden können. Eine Möglichkeit hierzu besteht darin, einen Prägekörper in Form einer Metallfolie oder aus Dünnblechen auf einen Stahlzylinder zur Oberflächenstrukturierung aufzuspannen, wobei der Durchmesser der Stahlzylinder an die maximale Breite der Pressbleche anpassbar ist, sodass nach Fertigstellung des Prägekörpers und nach Entfernen von den Stahlzylindem dieser mit dem Trägerkörper verbunden werden kann.For the production of the embossing body known from the prior art, for example, etching technology or laser engraving, used, these preferably have only a small thickness and thus can be processed much less complicated. One possibility for this is to clamp a stamping body in the form of a metal foil or thin sheets on a steel cylinder for surface structuring, the diameter of the steel cylinder is adaptable to the maximum width of the press plates, so after completion of the embossing body and after removal of the Stahlzylindem this with the Carrier body can be connected.
Soweit Metallfolien beziehungsweise Dünnbleche oder andere Materialien, zum Beispiel Stahl oder Messing verwendet werden, können diese auf den Stahlzylinder aufgespannt und danach entsprechend graviert werden, es folgen die oben genannten Schritte bis zur Fertigstellung der Oberflächenstrukturierung. Die auf diese Weise hergestellten Metallfolien oder Dünnbleche werden danach auf die Größe des Trägerkörpers zugeschnitten und mit diesem verbunden, sodass das Pressblech oder Endlosband zur weiteren Verwendung zur Verfügung steht.As far as metal foils or thin sheets or other materials, such as steel or brass are used, they can be clamped onto the steel cylinder and then engraved accordingly, followed by the above steps until the completion of the surface structuring. The metal foils or thin sheets produced in this way are then cut to the size of the carrier body and connected to it, so that the press plate or endless belt is available for further use.
Alternativ besteht die Möglichkeit eine Ballardhaut von ca. 100 µm auf einer Kupfergrundschicht auf zu galvanisieren, wobei zwischen der Grundschicht und der Ballardhaut eine Trennschicht angeordnet sein kann, sodass ein späteres Abheben der Ballardhaut möglich ist. Mit Ballardhaut wird beim Tiefdruck eine abziehbare Kupferschicht auf einem Tiefdruckzylinder bezeichnet. Den aus Stahl bestehenden Tiefdruckzylinder bedeckt eine rund 2 mm starke Grundkupferschicht, auf die eine zweite Kupferschicht, die sogenannte Ballardhaut aufgalvanisiert wird. Zwischen der 100 µm dünnen Ballardhaut und dem Grundkörper liegt die Trennschicht, sodass sich die Ballardhaut nach der Gravur einfach entfernen und durch eine neue ersetzen lässt. Nach dem Aufgalvanisieren der Kupferschicht kann diese noch poliert werden und danach erfolgt die Oberflächenstrukturierung, beispielsweise mittels eines Lasers. Die fertig gravierte Oberfläche wird anschließend zur Steigerung der Verschleißfestigkeit galvanisch mit einer Chromschicht überzogen, wobei im Einzelfall weitere Verarbeitungsschritte folgen können, um beispielsweise den Glanzgrad zu beeinflussen. Zum Abziehen der Ballardhaut wird diese in der Regel an einem Stirnende des Stahlzylinders geöffnet und anschließend mittels Zangen heruntergezogen und entfernt. Der Stahlzylinder selbst kann danach für die nächste Produktion wieder verwendet werden.Alternatively, it is possible to electroplate a ballard skin of about 100 microns on a copper base layer, wherein between the base layer and the ballard skin can be arranged a release layer, so that a later lifting of the ballard skin is possible. With ballard skin, gravure refers to a peelable layer of copper on a gravure cylinder. The gravure cylinder made of steel covers a 2 mm thick base copper layer on which a second copper layer, the so-called ballard skin, is galvanized. Between the 100 μm thin ballard skin and the main body lies the separation layer, so that the ballard skin can be easily removed after engraving and replaced with a new one. After galvanizing the copper layer, it can still be polished and then the surface structuring takes place, for example by means of a laser. The finished engraved surface is then coated to increase the wear resistance galvanic with a chrome layer, in individual cases, further processing steps can follow, for example, to influence the gloss level. To remove the ballard skin this is usually opened at a front end of the steel cylinder and then pulled down by pliers and removed. The steel cylinder itself can then be reused for the next production.
Für den Trägerkörper wird vorzugsweise ein Metall verwendet, beispielsweise Edelstahl, AISI Nr. 630, AISI 410 oder AISI 304 oder alternativ ein Messingblech. Der Prägekörper kann demgegenüber aus Kupfer, Messing oder Edelstahl bestehen, wobei die Dicke in Abhängigkeit von der erforderlichen Strukturtiefe frei wählbar ist, vorzugsweise 0,3 bis 3,0 mm, besonders bevorzugt 0,3 bis 1,5 mm.For the carrier body, a metal is preferably used, for example stainless steel, AISI No. 630, AISI 410 or AISI 304 or alternatively a brass sheet. In contrast, the embossing body may consist of copper, brass or stainless steel, wherein the thickness is freely selectable depending on the required structure depth, preferably 0.3 to 3.0 mm, particularly preferably 0.3 to 1.5 mm.
Die wesentlichen Vorteile der neu gestalteten Pressbleche oder Endlosbänder besteht hierbei in einer späteren Trennung von Trägerkörper und Prägekörper, wobei der Prägekörper einen deutlich höheren Verschleiß ausgesetzt ist, als der Trägerkörper, Der Trägerkörper kann daher mehrfach zum Einsatz kommen und wird immer wieder mit einem Prägekörper neu verbunden, wobei vorzugsweise mit Magnetwerkstoffen dotierte Haftkleber zum Einsatz kommen, die eine innige Verbindung ermöglichen. Alternativ kann eine Verbindung mit Hilfe von Magnetwerkstoffen, insbesondere einer Magnetklebefolie erfolgen, um die gewünschten Vorteile zu erzielen.The main advantages of the newly designed press plates or endless belts consists in a later separation of carrier body and embossing body, the embossing body is exposed to significantly higher wear than the carrier body, the carrier body can therefore be used several times and is always new with a stamping body connected, preferably with magnetic materials doped pressure-sensitive adhesives are used, which allow an intimate connection. Alternatively, a connection can be made with the aid of magnetic materials, in particular a magnetic adhesive film, in order to achieve the desired advantages.
Das Verfahren gemäss Anspruch 12 zeichnet sich durch eine besondere Wirtschaftlichkeit aus und ermöglicht darüber hinaus die mehrfache Wiederverwendung des Trägerkörpers, welcher nahezu keinem Verschleiß ausgesetzt ist. Die hierbei verwendeten Prägekörper in Form einer dünnen Metallfolie oder einem Dünnblech können reversibel von dem Trägerkörper entfernt werden, sodass eine Aufarbeitung der Trägerkörper nur in geringem Umfang erforderlich ist. Hierdurch wird erhebliche Bearbeitungszeit eingespart und zudem wird durch die Verwendung von Dünnblechen oder Metallfolien mit einer Oberflächenstrukturierung ein erhebliches Einsparungspotential erzielt, insbesondere aufgrund der Tatsache, dass die zu verarbeitenden Materialien, Holzwerkstoffe mit Overlay- und Dekorpapieren eine Abnutzung der Prägekörper verursachen. Der besondere Vorteil ergibt sich hierbei durch die reversible Verbindung von Träger- und Prägekörper.The method according to
Ein weiterer Vorteil dieser erfindungsgemäßen Pressbleche oder Endlosbänder besteht darin, dass für den Trägerkörper weniger hochwertige Metalle verwendet und somit die Herstellungskosten deutlich gesenkt werden können. Bisher war es notwendig hochwertige Edelstähle einzusetzen, die es ermöglichen die notwendige Oberflächenstrukturierung vorzunehmen. Hierauf braucht jedoch keine Rücksicht mehr genommen zu werden, da die Oberflächenstrukturierung nur auf der Oberfläche des Prägekörpers erfolgt.A further advantage of the press plates or endless belts according to the invention is that less high-quality metals are used for the carrier body and thus the production costs can be significantly reduced. So far, it has been necessary to use high-grade stainless steels, which make it possible to carry out the necessary surface structuring. However, there is no need to be taken into account, since the surface structuring takes place only on the surface of the embossing body.
Die Erfindung wird im Weiteren anhand zweier Figuren nochmals beschrieben.The invention will be described again with reference to two figures.
Es zeigt
- Fig. 1
- in einer perspektivischen Ansicht ein hergestelltes Pressblech mit einer Holzporenstruktur und
- Fig. 2
- in einer vergrößerten Schnittdarstellung den Aufbau des Pressbleches.
- Fig. 1
- in a perspective view of a manufactured pressed sheet with a wood pore structure and
- Fig. 2
- in an enlarged sectional view of the structure of the press plate.
Ein besonderer Vorteil dieser erfindungsgemäßen Pressbleche oder Endlosbänder besteht darin, dass für den Trägerkörper 10 weniger hochwertige Metalle verwendet werden müssen und somit die Herstellungskosten deutlich gesenkt werden können. Bisher war es notwendig hochwertige Edelstähle einzusetzen, die es ermöglichen die notwendige Oberflächenstrukturierung vorzunehmen. Hierauf braucht jedoch keine Rücksicht mehr genommen zu werden, da die Oberflächenstrukturierung nur auf der Oberfläche des Prägekörpers erfolgt.A particular advantage of this invention press plates or endless belts is that for the
- 11
- Pressblechpress plate
- 22
- MaserungGrain
- 1010
- Trägerkörpersupport body
- 1111
- Prägekörperstamping body
- 1212
- Haftmitteladhesives
- 1313
- Oberflächenstruktursurface structure
Claims (15)
- Pressing plate (1) or continuous belt, consisting of a carrier body (10) and an embossing body (11) for embossing materials, in particular wood materials or plastic materials, by means of a surface structuring of the embossing body (11), wherein the carrier body (10) is connected to the embossing body (11) via an adhesive agent (12), characterized in that, in case of carrier (10) and embossing bodies (11) made of steel, the adhesive agent (12) consists of a magnetic foil with high temperature stability, or that the adhesive agent consists of an adhesive with high temperature stability doped with metal powder which may be employed up to temperatures of 250 °C and is tempered above temperatures of 250 °C for detachment.
- Pressing plate (1) or continuous belt according to claim 1, characterized in that the carrier body (10) and the embossing body (11) form a sandwich structure which is reversibly interconnected.
- Pressing plate (1) or continuous belt according to claim 1 or 2, characterized in that the magnetic foil consists of a silicone elastomer to which magnetic materials with high temperature stability have been added, such as samarium/cobalt, aluminium/nickel/cobalt, neodymium/iron/boron, barium or strontium ferrites or soft ferrites, such as manganese/zinc compounds.
- Pressing plate (1) or continuous belt according to one of claims 1, 2 or 3, characterized in that an adhesive with high temperature stability and doped with metal powder is applicable, for example acrylate adhesive, such as PMMA adhesive poly(methacryl-methacrylate), PMI poly(methacrylimide), MBS poly(methacryl-methacrylate)-styrene-butadiene, UP unsaturated polyester resins - DAP diallyl phthalate, aromatic polyamides, silicone resins, epoxy resins, ACM acrylate rubber or FKM fluororubber adhesive.
- Pressing plate (1) or continuous belt according to one of claims 1 to 4, characterized in that copper, brass, aluminium or iron may be used as metal powder.
- Pressing plate (1) or continuous belt according to one of claims 1 to 5, characterized in that the bonding of the adhesive agent (12) may be cancelled by a solvent.
- Pressing plate (1) or continuous belt according to one of claims 1 to 6, characterized in that the embossing body (11) is embodied as Ballard shell, for example as strippable copper layer.
- Pressing plate (1) or continuous belt according to one of claims 1 to 7, characterized in that the Ballard shell consists of metal foils or thin sheets which are mounted on a steel cylinder for surface structuring, wherein the diameters of the steel cylinders may be adapted to the maximum width of the pressing plates (1).
- Pressing plate (1) or continuous belt according to one or several ones of claims 1 to 8, characterized in that the Ballard shell of about 100 µm is electroplated onto a copper base layer, a separation layer being disposed between the two layers.
- Pressing plate (1) or continuous belt according to one of claims 1 to 9, characterized in that the carrier body (10) consists of a metal, preferably of stainless steel, for example AISI No. 630, AISI 410 or AISI 304, or brass, and/or that the embossing body (11) consists of copper, brass or stainless steel, wherein the thickness may be selected depending on the structure depth, preferably 0.3 to 3.0 mm, particularly preferred 0.3 to 1.5 mm.
- Pressing plate (1) or continuous belt according to one or several ones of claims 1 to 10, characterized in that the surface structuring of the embossing body (11) is accomplished before it is connected to the carrier body (10) and/or that the surface structuring of the embossing body (11) may be produced by etching methods or laser engraving methods.
- Method for manufacturing a pressing plate (1) or continuous belt for embossing materials, in particular wood materials or plastic materials, comprising a carrier body (10) and an embossing body (11), wherein- the embossing body (11) obtains a surface structuring by an etching method, rolling method, pressing method or laser engraving,- the carrier (10) and embossing body (11) is connected with an adhesive agent (12), wherein in case of carrier (10) or embossing bodies (11) made of steel, the adhesive agent (12) consists of a magnetic foil with high temperature stability, or that the adhesive agent consists of an adhesive with high temperature stability doped with metal powder which may be employed up to temperatures of 250 °C and is tempered above temperatures of 250 °C for detachment.
- Method according to claim 12, characterized by a reversible connection of the carrier (10) and embossing body (11).
- Method according to claim 12 or 13, characterized by an embossing body (11) which is, for surface structuring, mounted or has been electroplated on a metal cylinder and is connected to the carrier body (10) after it has been peeled off the metal cylinder.
- Method for manufacturing embossed materials, in particular wood materials or plastic materials, by means of a pressing plate or continuous belt, consisting of a carrier body (10) and an embossing body (11) with a surface structure which are interconnected by an adhesive agent, wherein in case of carrier (10) and embossing bodies (11) made of steel, the adhesive agent (12) consists of a magnetic foil with high temperature stability, or that the adhesive agent consists of an adhesive with high temperature stability doped with metal powder which may be employed up to temperatures of 250 °C and is tempered above temperatures of 250 °C for detachment.
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11005298.2A EP2540487B1 (en) | 2011-06-29 | 2011-06-29 | Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon |
PL11005298T PL2540487T3 (en) | 2011-06-29 | 2011-06-29 | Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon |
ES11005298.2T ES2550955T3 (en) | 2011-06-29 | 2011-06-29 | Pressed or pressed sheet or endless belt with a sandwich structure, process for manufacturing said endless sheet or tape and method for manufacturing embossed materials using said pressure plate or continuous belt |
KR1020167015295A KR101742969B1 (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
CN201280031087.8A CN103619576B (en) | 2011-06-29 | 2012-06-26 | There is pressed sheet or the tape loop of sandwich |
PCT/EP2012/002684 WO2013000563A1 (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
RU2013155916A RU2626707C2 (en) | 2011-06-29 | 2012-06-26 | Press gasket or infinite tape of multilayered structure |
BR112013030196A BR112013030196A2 (en) | 2011-06-29 | 2012-06-26 | printing table or endless belt for stamping materials, process for manufacturing the printing table or endless belt for stamping materials, and material plate |
AU2012278277A AU2012278277B2 (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
CA2840544A CA2840544C (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
NZ617619A NZ617619B2 (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
US14/114,535 US9610748B2 (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
KR1020137034695A KR20140012762A (en) | 2011-06-29 | 2012-06-26 | Press platen or endless belt having a sandwich-type structure |
JP2014516230A JP6102920B2 (en) | 2011-06-29 | 2012-06-26 | Press sheet or endless belt with sandwich structure, method for manufacturing press sheet or endless belt, and material panel manufactured using press sheet or endless belt |
CL2013003726A CL2013003726A1 (en) | 2011-06-29 | 2013-12-26 | Pressing plate or endless belt for stamping materials in particular wood materials or plastics materials because a carrier body is provided that is attached to a stamping body through a magnetically active and / or metallic adhesive agent; process for the pressing plate or endless belt. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11005298.2A EP2540487B1 (en) | 2011-06-29 | 2011-06-29 | Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2540487A1 EP2540487A1 (en) | 2013-01-02 |
EP2540487B1 true EP2540487B1 (en) | 2015-08-26 |
Family
ID=46651443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11005298.2A Active EP2540487B1 (en) | 2011-06-29 | 2011-06-29 | Pressed sheet or continuous ribbon with a sandwich structure, Process to manufacture such pressed sheet or continuous ribbon and Process to manufacture punched material using such pressed sheet or continuous ribbon |
Country Status (13)
Country | Link |
---|---|
US (1) | US9610748B2 (en) |
EP (1) | EP2540487B1 (en) |
JP (1) | JP6102920B2 (en) |
KR (2) | KR101742969B1 (en) |
CN (1) | CN103619576B (en) |
AU (1) | AU2012278277B2 (en) |
BR (1) | BR112013030196A2 (en) |
CA (1) | CA2840544C (en) |
CL (1) | CL2013003726A1 (en) |
ES (1) | ES2550955T3 (en) |
PL (1) | PL2540487T3 (en) |
RU (1) | RU2626707C2 (en) |
WO (1) | WO2013000563A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3666514A1 (en) * | 2018-12-12 | 2020-06-17 | Flooring Technologies Ltd. | Pressed sheet for forming deep structures |
CN110682579A (en) * | 2019-11-10 | 2020-01-14 | 衡阳和富铜业有限公司 | Waste storage equipment for brass processing |
DE102022125370B3 (en) | 2022-09-30 | 2024-01-11 | Hueck Rheinische Gmbh | Method for producing a pressing tool, pressing tool and method for producing a material plate with a pressing tool |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3532587A (en) * | 1966-08-04 | 1970-10-06 | Esso Research & Chem Co | Press plate |
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SU718303A1 (en) * | 1978-04-10 | 1980-02-29 | Предприятие П/Я Г-4086 | Apparatus for applying relief decoration |
JPS56169036A (en) | 1980-05-31 | 1981-12-25 | Dainippon Printing Co Ltd | Manufacture of embossing roll |
DE3834993A1 (en) | 1988-10-14 | 1990-04-19 | Held Kurt | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF LAMINATES |
JPH03219441A (en) * | 1990-01-24 | 1991-09-26 | Canon Inc | Long-sized stamper and its manufacture |
JP2000309773A (en) * | 1998-11-30 | 2000-11-07 | Nippon Handa Kk | Conductive adhesive and bonding method using same |
AT504185B1 (en) * | 2003-07-03 | 2009-06-15 | Oebs Gmbh | METHOD FOR PRODUCING A PRESSURE PLATE |
US8932632B2 (en) * | 2003-10-21 | 2015-01-13 | Ppg Industries Ohio, Inc. | Adhesives and sealants nanotechnology |
JP4635569B2 (en) * | 2004-11-05 | 2011-02-23 | ソニー株式会社 | Roll mold manufacturing method and roll mold |
BE1016613A3 (en) * | 2005-06-06 | 2007-02-06 | Flooring Ind Ltd | METHOD, DEVICE AND ACCESSORIES FOR MANUFACTURING FLOOR PANELS. |
JPWO2007049530A1 (en) * | 2005-10-24 | 2009-04-30 | Scivax株式会社 | Mold holder, workpiece holder, micro-machining device, and mold mounting method |
TWI322927B (en) * | 2006-05-24 | 2010-04-01 | Ind Tech Res Inst | Roller module for microstructure thin film imprint |
JP2008110496A (en) * | 2006-10-27 | 2008-05-15 | Daiso Co Ltd | Shaping method for structure of decorative layer and method for producing decorative plate |
DE102007062123A1 (en) * | 2007-12-21 | 2009-06-25 | Giesecke & Devrient Gmbh | Tool mold for creating a microstructure |
JP5511313B2 (en) * | 2008-11-07 | 2014-06-04 | キヤノン株式会社 | Optical element molding die, optical element molding mold manufacturing method, optical element, and optical element manufacturing method |
DE102009051311A1 (en) * | 2009-10-29 | 2011-05-12 | Okt Germany Gmbh | Method for producing a press plate, method for producing a press plate arrangement and press plate arrangement |
DE202009014669U1 (en) * | 2009-10-30 | 2010-01-21 | Hueck Rheinische Gmbh | Material plate with decorative layer and embossing |
-
2011
- 2011-06-29 PL PL11005298T patent/PL2540487T3/en unknown
- 2011-06-29 EP EP11005298.2A patent/EP2540487B1/en active Active
- 2011-06-29 ES ES11005298.2T patent/ES2550955T3/en active Active
-
2012
- 2012-06-26 RU RU2013155916A patent/RU2626707C2/en active
- 2012-06-26 JP JP2014516230A patent/JP6102920B2/en not_active Expired - Fee Related
- 2012-06-26 WO PCT/EP2012/002684 patent/WO2013000563A1/en active Application Filing
- 2012-06-26 CN CN201280031087.8A patent/CN103619576B/en not_active Expired - Fee Related
- 2012-06-26 BR BR112013030196A patent/BR112013030196A2/en not_active Application Discontinuation
- 2012-06-26 KR KR1020167015295A patent/KR101742969B1/en active IP Right Grant
- 2012-06-26 US US14/114,535 patent/US9610748B2/en active Active
- 2012-06-26 KR KR1020137034695A patent/KR20140012762A/en active Application Filing
- 2012-06-26 AU AU2012278277A patent/AU2012278277B2/en not_active Ceased
- 2012-06-26 CA CA2840544A patent/CA2840544C/en not_active Expired - Fee Related
-
2013
- 2013-12-26 CL CL2013003726A patent/CL2013003726A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3532587A (en) * | 1966-08-04 | 1970-10-06 | Esso Research & Chem Co | Press plate |
Also Published As
Publication number | Publication date |
---|---|
CN103619576A (en) | 2014-03-05 |
KR20140012762A (en) | 2014-02-03 |
PL2540487T3 (en) | 2015-12-31 |
JP6102920B2 (en) | 2017-03-29 |
KR101742969B1 (en) | 2017-06-02 |
RU2013155916A (en) | 2015-08-10 |
ES2550955T3 (en) | 2015-11-13 |
CN103619576B (en) | 2016-08-17 |
EP2540487A1 (en) | 2013-01-02 |
RU2626707C2 (en) | 2017-07-31 |
US9610748B2 (en) | 2017-04-04 |
JP2014522745A (en) | 2014-09-08 |
CA2840544A1 (en) | 2013-01-03 |
CL2013003726A1 (en) | 2014-12-19 |
NZ617619A (en) | 2016-01-29 |
KR20160069524A (en) | 2016-06-16 |
BR112013030196A2 (en) | 2016-12-06 |
US20140099395A1 (en) | 2014-04-10 |
CA2840544C (en) | 2019-02-12 |
AU2012278277B2 (en) | 2016-03-03 |
WO2013000563A1 (en) | 2013-01-03 |
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